Question about errors of <Premium Charts Bundle - Chart JS>

Hello,
I’m trying to use the plug-in “Premium Charts Bundle - Chart JS”.
I need to make some line charts with time series.

First, I see the error message like below;

TypeError: Cannot read properties of undefined (reading ‘unregister’)

I’ve tried several ways to solve it,
and I found that the error doesn’t occur if I add another chart element in the same page.
But then other error message is shown like below;

TypeError: value.toPrecision is not a function

Could anyone give me a help about this?
Thank you in advance.